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Stainless Steel PH 13-8 Mo Condition A vs PH 13-8 Mo-H1025

Stainless Steel · PH 13-8 Mo temper comparison

PH 13-8 Mo Condition A and PH 13-8 Mo-H1025 are two conditions of the same stainless steel grade, PH 13-8 Mo: Condition A (solution annealed) versus H1025 (aged 552 °C (1025 °F) for 4 h). The chemistry is identical, so every difference below comes from the condition. PH 13-8 Mo-H1025 is the stronger of the two: yield strength 1,310 MPa (190 ksi) against 800 MPa (116 ksi) for PH 13-8 Mo Condition A, about 64% more; tensile strength follows at 1,410 MPa (205 ksi) vs 1,000 MPa (145 ksi). PH 13-8 Mo-H1025 is harder — 405 HB against 320 HB for PH 13-8 Mo Condition A — which matters for wear surfaces and threads. PH 13-8 Mo-H1025 runs hotter in service (440°C vs 315°C continuous).

PH 13-8 Mo-H1025Choose it when strength drives the design, or when surface hardness matters.

PH 13-8 Mo Condition A vs PH 13-8 Mo-H1025: properties

PH 13-8 Mo Condition APH 13-8 Mo-H1025

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Tensile Strength (Ultimate)

1,000 MPa145 ksi
1,410 MPa205 ksi

Yield Strength (0.2% offset)

800 MPa116 ksi
1,310 MPa190 ksi

Reduction in Area

60%
57%

Shear Strength

640 MPa92.8 ksi
855 MPa124 ksi

Fatigue Strength (Endurance Limit)

480 MPa69.6 ksi
670 MPa97.2 ksi

Charpy V-Notch Impact (RT)

22 J16.2 ft·lbf
38 J28 ft·lbf

Hardness, Brinell

320 HB
405 HB

Hardness, Rockwell C

33 HRC
43 HRC

Same in both: Elastic (Young's) Modulus 203 GPa29.4 Msi · Shear Modulus 78 GPa11.3 Msi · Bulk Modulus 155 GPa22.5 Msi · Poisson's Ratio 0.28 · Elongation at Break 14% · Compressive Strength 830 MPa120 ksi

Physical

Density and transition temperatures.

Same in both: Density 7.76 g/cm³0.28 lb/in³ · Melting Point (Solidus) 1,400°C2,552 °F · Liquidus Temperature 1,440°C2,624 °F

Thermal

How each material carries heat and how hot it can run.

Max Service Temperature (continuous)

315°C599 °F
440°C824 °F

Same in both: Thermal Conductivity 14 W/m·K8.1 BTU/hr·ft·°F · Specific Heat Capacity 460 J/kg·K0.11 BTU/lb·°F · Thermal Expansion (CTE, 20–100 °C) 10.6 µm/m·K5.9 µin/in·°F · Min Service Temperature -196°C-321 °F

Electrical

Conductivity and insulation.

Same in both: Electrical Conductivity 1.7 % IACS · Electrical Resistivity 1.02×10⁻⁶ Ω·m40.2 µΩ·in

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

55 / 100
57 / 100

Same in both: Galvanic Potential (seawater, vs SCE) -0.25 V

Manufacturability

FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.

Machinability

32 / 100
27 / 100

Machinability Rating (AISI 1212 = 100 %)

30%
24%

Same in both: Weldability 60 / 100 · Formability (cold) 40 / 100 · Brazeability / Solderability 50 / 100 · Polishability 80 / 100

Sustainability

Primary-production footprint per kilogram.

Same in both: Embodied Energy (primary production) 62 MJ/kg26,655 BTU/lb · Embodied Carbon (primary production) 4.8 kg CO₂/kg · Embodied Water 110 L/kg13.2 gal/lb · Typical Recycled Content 30%

Strength versus weight

Yield strength against density for every stainless steel grade in the FabDigit library; the compared grades are highlighted. Up and left is stronger for its weight.

3005007001,0001,5002,0007.27.47.67.888.2Density (g/cm³)Yield strength (MPa) — log scalePH 13-8 Mo

PH 13-8 Mo Condition A vs PH 13-8 Mo-H1025 — frequently asked

Is PH 13-8 Mo-H1025 stronger than PH 13-8 Mo Condition A?

Yes. PH 13-8 Mo-H1025 has a typical yield strength of 1,310 MPa (190 ksi) against 800 MPa (116 ksi) for PH 13-8 Mo Condition A — about 64% more. Tensile strength is 1,410 MPa (205 ksi) vs 1,000 MPa (145 ksi).

Which condition does FabDigit quote by default, Condition A or H1025?

Condition A is the default PH 13-8 Mo condition in the FabDigit quote flow. The other condition is available on request or by drawing note — specify it in the material field or the part notes and the quote is priced for it.

Which is easier to machine, PH 13-8 Mo Condition A or PH 13-8 Mo-H1025?

PH 13-8 Mo Condition A, by a small margin. Both rate poor for machinability — 32/100 against 27/100 for PH 13-8 Mo-H1025.

Ready to make it?

Upload a CAD file and FabDigit prices the part in PH 13-8 Mo Condition A and PH 13-8 Mo-H1025 side by side — material, machining time, tolerance and finish in one quote. Certified material data ships with the order on request.

Typical handbook values for the conditions named above, normalised for comparison. Hardness on non-Brinell scales is converted approximately for charting only. Request certified data with your order for design-critical properties.